D3.5 Rapid appraisal visualizer tool

The CHORIZO project, “Changing practices and Habits through Open, Responsible, and social Innovation towards ZerO Food Waste”, aims to reduce food waste (FW) by enhancing our understanding of the influence of social norms on FW. A central component of this effort is the development of two simulation models: the Establishment Diner model, which focuses on social food consumption in hospitality settings, and the Home Cook model, which explores behaviours and routines in the household context. To make the insights from these simulations accessible to a broader audience, the project developed the CHORIZO FLW Rapid Appraisal/Visualizer Tool, an interactive, web-based platform that translates complex modelling outputs into engaging, narrative scenario descriptions. The tool allows users to explore the effects of different behavioural and contextual variables on FW generation in two contexts: buffet-style restaurants and households. This report is intended as a guide accompanying the web-tool, introducing its objectives, intended users, functionalities, and technical structure. It explains how the tool supports policymakers, researchers, educators, and food system stakeholders in identifying and evaluating food waste interventions. Users can compare scenarios, understand behavioural patterns, and draw practical lessons — all without needing technical expertise in modelling. By transforming model-based results into intuitive and actionable insights, the CHORIZO FLW Rapid Appraisal /Visualizer Tool contributes to bridging the gap between behavioural science and real-world decision-making for more sustainable food systems.